Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of piston pressure switch in China. Welcome to buy high quality piston pressure switch at competitive price from our factory. We also accept customized orders.
Products Description
| Parameter | Specification |
|---|---|
| Pressure range | 6…40 bar to 40…250 bar |
| Max pressure resistance: |
250 bar |
| Output type: | SPDT (NO+NC) |
| Repeatability: |
≤ ±3% |
| Ambient temperature: |
–20 °C to +85 °C |
Please see the Specifications for more details.
Typical Applications
Hydraulic Power Units: Pressure monitoring, pump start/stop control, overpressure protection, and hydraulic system safety interlocks.
Air Compressor Systems: Automatic compressor control, receiver tank pressure regulation, low-pressure alarm, and high-pressure protection.
Industrial Pumps: Pump automation, pipeline pressure maintenance, dry-run prevention, and pressure-based pump sequencing.
Why Choose Mechanical pressure switches ?
Mechanical pressure switches use mechanical structures such as springs, diaphragms, or pistons for pressure detection, without complex electronic components. They can operate stably for extended periods even in harsh industrial environments. Their mature and reliable mechanical structure ensures stable contact action, making them suitable for frequent start-stop control. They have low maintenance costs and can withstand instantaneous pressure surges and fluctuations, making them suitable for high-load conditions such as hydraulic systems, air compressors, and industrial pumps, and supporting harsh operating environments.
Why Engineers Choose Mechanical pressure switch
- Small footprint, fits tight installation spaces.
- Stable switching performance with good repeatability.
- Works with both hydraulic oil and compressed air.
- Heavy-duty SPDT contact for reliable equipment control.
- Rugged metal housing, built for industrial environments.
Key Advantages
- Automatic pressure control
- Equipment safety protection
- Pressure monitoring and alarm
- Stable and reliable operation
- Suitable for harsh industrial environments
|
HNP10-B Mechanical Pressure Switch |
|
|
Specific Parameters |
Value / Description |
|
Measurement Principle |
The series pressure switch uses a diaphragm (low pressure) or piston (high pressure) measuring element, suitable for gas or liquid pressure detection. When the pressure reaches the set value, the moving part will trigger a micro switch with spring support, which can be panel mounted and can measure neutral gases, air, lubricating oil, engine oil and other media. |
|
Connection Method |
G1/4 thread, customized |
|
Enclosure Material |
Aluminum/Steel/Stainless Steel optional |
|
Process Connection Material |
Aluminum/Steel/Stainless Steel optional |
|
Wetted Material |
Wetted material: NBR/aluminum/steel/stainless steel |
|
Wiring Method |
Solenoid Valve Connector |
|
Repeatability |
≤±3%(Related to the set value) |
|
Measurement Range |
6-40bar, 10-70bar, 20-150bar, 40-250bar, Custom |
|
Switching Capacity |
Signal Light OFF: 30VDC, 2A 250VAC, 3A |
|
Medium Temperature Range |
-20-80℃ |
|
Ambient Temperature Range |
-20-85℃ |
|
Pipe Material |
PFA, PTFE, Teflon, PP, PVDF, PA and other rigid tubing materials |
|
Output |
Gold-plated Micro Switch SPDT |
|
Contact Capacity |
250Vac,3A |
|
Certification |
CE |







